<template>
  <a-layout>
    <a-layout-content
        :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >

      <a-row :gutter="24">
        <a-col :span="8">
          <p>
            <a-form layout="inline" :model="param">
              <a-form-item>
                <a-button
                    type="primary"
                    @click="handleQuery()"
                >
                  查询
                </a-button>
              </a-form-item>
              <a-form-item>
                <a-button type="primary" @click="add()">
                  新增
                </a-button>
              </a-form-item>
            </a-form>
          </p>
          <a-table
              :columns="columns"
              :row-key="record => record.id"
              :data-source="level1"
              :loading="loading"
              :pagination="false"
              size="small"
          >
            <template #name="{ text: record }">
              {{record.sort}}{{text}}
            </template>
            <template v-slot:action="{ text, record }">
              <a-space size="small">
                <a-button type="primary" @click="edit(record)" size="small">
                  编辑
                </a-button>
                <a-popconfirm
                    title="删除后不可恢复，确认删除？"
                    ok-text="是"
                    cancel-text="否"
                    @confirm="handleDelete(record.id)"
                >
                  <a-button type="danger" size="small">
                    删除
                  </a-button>
                </a-popconfirm>
              </a-space>
            </template>
          </a-table>
        </a-col>
        <a-col :span="16">
          <p>
            <a-form layout="inline" :model="param">
              <a-form-item>
                <a-button type="primary" @click="handleSave()">
                  保存
                </a-button>
              </a-form-item>
            </a-form>
          </p>
          <a-form :model="doc" layout="vertical">
            <a-form-item>
              <a-input v-model:value="doc.name" placeholder="名称"/>
            </a-form-item>
            <a-form-item>
              <a-tree-select
                  v-model:value="doc.parent"
                  style="width: 100%"
                  :dropdown-style="{ maxHeight: '400px', overflow: 'auto' }"
                  :tree-data="treeSelectData"
                  placeholder="请选择父文档"
                  tree-default-expand-all
                  :replaceFields="{title: 'name', key: 'id', value: 'id'}"
              >
              </a-tree-select>
            </a-form-item>
            <a-form-item>
              <a-input v-model:value="doc.sort" placeholder="顺序"/>
            </a-form-item>
            <a-form-item>
              <div id="content"></div>
            </a-form-item>
          </a-form>
        </a-col>
      </a-row>


    </a-layout-content>
  </a-layout>

<!--  <a-modal-->
<!--    title="文档表单"-->
<!--    v-model:visible="modalVisible"-->
<!--    :confirm-loading="modalLoading"-->
<!--    @ok="handleModalOk"-->
<!--  >-->
<!--      -->
<!--  </a-modal>-->

</template>

<script lang="ts">
import { defineComponent, onMounted, ref } from 'vue';
import axios from 'axios';
import {message} from 'ant-design-vue';
import {Tool} from "@/util/tool";
import {useRoute} from "vue-router";
import E from 'wangeditor'

export default defineComponent({
  name: 'AdminDoc',
  setup() {
    const route = useRoute();
    console.log("路由：", route);
    console.log("route.path：", route.path);
    console.log("route.query：", route.query);
    console.log("route.param：", route.params);
    console.log("route.fullPath：", route.fullPath);
    console.log("route.name：", route.name);
    console.log("route.meta：", route.meta);
    const param = ref();
    param.value={};
    const docs = ref();
    const loading = ref(false);

    const columns = [
      {
        title: '名称',
        dataIndex: 'name',
        slots: {customRender: 'name'}
      },
      {
        title: '父文档',
        key: 'parent',
        dataIndex: 'parent'
      },
      {
        title: '顺序',
        dataIndex: 'sort'
      },
      {
        title: 'Action',
        key: 'action',
        slots: { customRender: 'action' }
      }
    ];
    //一级文档树，children属性就是二级文档
    const level1 = ref();

    /**
     * 数据查询
     **/
    const handleQuery = () => {
      loading.value = true;
      axios.get("/doc/all").then((response) => {
        loading.value = false;
        const data = response.data;
        if (data.success){
          docs.value = data.content;
          console.log("原始数组:",docs.value)

          level1.value=[];
          level1.value = Tool.array2Tree(docs.value,0);
          console.log("树形结构：",level1);
        }else{
          message.error(data.message);
        }

      });
    };

    //------------- 表单 ------------
    const treeSelectData = ref();
    treeSelectData.value = [];
    const doc = ref({});
    const modalVisible = ref(false);
    const modalLoading = ref(false);
    const editor =new E('#content')
    editor.config.zIndex = 0;


    const handleSave = () => {
      modalLoading.value = true;
      axios.post("/doc/save",doc.value).then((response) => {
        //后端只要有返回就取消loading效果
        modalLoading.value = false;
        const data=response.data;
        if (data.success){
          modalVisible.value = false;

        //  重新加载列表
          handleQuery();
        }else{
          message.error(data.message);
        }
      });
    };

    /**
     * 将某节点及其子孙节点全部置为disabled
     */
    const setDisable = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("disabled", node);
          // 将目标节点设置为disabled
          node.disabled = true;

          // 遍历所有子节点，将所有子节点全部都加上disabled
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              setDisable(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            setDisable(children, id);
          }
        }
      }
    };

    /**
     * 查找整根树枝
     */
    const ids: Array<string> =[];
    const getDeleteIds = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("disabled", node);
          // 将目标节点设置为disabled
          // node.disabled = true;
          ids.push(id);

          // 遍历所有子节点，将所有子节点全部都加上disabled
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              getDeleteIds(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            getDeleteIds(children, id);
          }
        }
      }
    };

    //编辑
    const edit = (record: any)=>{
      modalVisible.value = true;
      doc.value = Tool.copy(record);

      // 不能选择当前节点及其所有子孙节点，作为父节点，会使树断开
      treeSelectData.value = Tool.copy(level1.value);
      setDisable(treeSelectData.value, record.id);

      // 为选择树添加一个"无"
      treeSelectData.value.unshift({id: 0, name: '无'});
    };

    //新增
    const add = ()=>{
      modalVisible.value = true;
      doc.value = {
        ebookId: route.query.ebookId
      };

      treeSelectData.value = Tool.copy(level1.value);

      // 为选择树添加一个"无"
      treeSelectData.value.unshift({id: 0, name: '无'});
    }
    //删除
    const handleDelete = (id: number)=>{
      getDeleteIds(level1.value,id);
      axios.delete("/doc/delete/"+ids.join(",")).then((response) => {
        const data = response.data;
        if (data.success){
          handleQuery();
        }
      });
    };

    onMounted(()=>{
      handleQuery();
      editor.create();
    })

    return {
      param,
      // docs,
      level1,
      columns,
      loading,

      edit,
      add,

      doc,
      modalVisible,
      modalLoading,
      handleSave,
      handleDelete,
      handleQuery,
      treeSelectData

    }
  }
});
</script>

<style scoped>
img {
  width: 50px;
  height: 50px;
}
</style>
